Quantum-Si share price logo

Quantum-Si

NASDAQ: QSI

$1.12

-0.19

(-14.50%)

as on

Quantum-Si Stock Performance

as on October 19, 2026 at 2:15 pm IST

  • Day's Low

    Day's High

    $1.10
    $1.33
    downward going graph

    1.79%

    Downside

    18.75%

    Upside

    downward going graph
  • 52 Week's Low

    52 Week's High

    $0.69
    $2.73
    downward going graph

    38.39%

    Downside

    143.75%

    Upside

    downward going graph

Quantum-Si share price movements today

Previous Close
$1.31
Open
$1.32
Volume
8.1M
Market Cap
$245.1M
Day's Low - High
$1.10 - $1.33
52 Week Low - High
$0.69 - $2.73

Quantum-Si Historical Returns

1 Month Return
+ 50.32 %
3 Month Return
+ 36.19 %
1 Year Return
-50.88 %
3 Year Return
-7.44 %
5 Year Return
-86.84 %

Quantum-Si Stock Fundamentals & Key Indicators

Check Quantum-Si market cap, PE, PB, PEG ratios, dividend yield, and other key fundamental indicators.

Market Cap

$245.1M

EPS (TTM)

-0.4642

Dividend Yield

0.00%

Quarterly Earnings Growth YOY

0.00%

PE Ratio (TTM)

-2.82

Industry PE ratio

-4.83

PEG Ratio

-0.07

EBITDA

-90.8M

Revenue (TTM)

1.6M

Profit Margin

35.02%

Return On Equity TTM

-47.12%

Quantum-Si vs Peer Comparison

Compare market cap, revenue, PE, and other key metrics of Quantum-Si with its industry peers.

Company
Analyst View
Market Cap
5 Years Return %PE RatioProfit Margin %Dividend Yield %
Buy$245.1M-86.84%-2.8235.02%0.00%
Buy$121.2B-22.46%23.3466.69%3.02%
Buy$49.9B-24.70%49.7777.98%0.00%
StrongBuy$181.5B-12.11%33.7256.80%2.40%
StrongBuy$113.0B8.79%30.1465.17%1.19%

Stock Returns calculator for Quantum-Si Stock including INR - Dollar returns

The Quantum-Si stock calculator helps Indian investors calculate returns based on the historical performance of the stock. Just choose your investment amount and duration to get insights and invest more confidently. See stock returns as well as the effect of dollar appreciation over different durations.

*Dollar Impact: The bonus return you make when the US Dollar rises against the Rupee; calculated on the full amount you walk away with, not just what you invested in.

Investment Value

₹1,00,000

  • 1Y

  • 3Y

  • 5Y

Quantum-Si investment value today

Current value as on today

₹53,058

Returns

-₹46,942

(-46.94%)

Returns from Quantum-Si Stock

-₹50,877 (-50.88%)

Dollar Impact

₹3,935 (+3.94%)

Analyst Recommendation on Quantum-Si Stock

Based on 1 analysts

BUY

100.00%

Buy

0.00%

Hold

0.00%

Sell

Based on 1 analysts, 100% of analysts recommend a 'BUY' rating for Quantum-Si. Average target price of $2.3

Quantum-Si Share Price Target

Get share price movements and forecasts by analysts on Quantum-Si.

What analysts predicted

51.3%UPSIDE

Target Price

$2.3

Current Price

$1.12

Analyzed by

1 Analysts

High

$4

Target

$2.30

Low

$4

Quantum-Si target price $2.3, a slight upside of 51.3% compared to current price of $1.12. According to 1 analysts rating.

Indian Investors' Interest in Quantum-Si Stock

Investment in Quantum-Si Shares on INDmoney has grown by 141.33% in the last 30 days, indicating increased investment activity.

Time period: to

Change:141.33% versus previous 30 day period

Search interest for Quantum-Si Stock has increased by 318% in the last 30 days, reflecting an upward trend in search activity.

Time period: to

Change:318% versus previous 30 day period

Quantum-Si Quarterly Profit & Loss

All numbers in Millions USD

Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Mar 2026
Jun 2026
Total Revenue
0
0
0
1
0
0
0
0
0
0
Gross Profit
0
0
0
0
0
0
0
0
0
0
Operating Income
-23
-26
-28
-30
-25
-26
-24
-21
-24
-25
EBITDA
-18
-21
-24
-32
-24
-25
-23
-19
-22
-24
Interest Expense
-
-
-
-
-
-
-
-
-
-
Depreciation
1
1
1
0
0
1
1
1
1
1
Income Before Tax
-19
-23
-25
-33
-19
-28
-35
-17
-21
-23
Income Tax Expense
-
-
0
0
0
0
0
0
0
-
Net Income
-19
-23
-25
-33
-19
-28
-35
-17
-21
-23
Net Profit Margin
58.86%
56.91%
46.63%
51.17%
57.72%
59.39%
35.14%
27.05%
28.68%
50.00%

Quantum-Si Annual Profit & Loss

All numbers in Millions USD

Dec 2019
Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Total Revenue
-
-
-
-
1
3
2
Gross Profit
-
-
-
-
0
1
1
Operating Income
-36
-36
-96
-123
-111
-108
-97
EBITDA
-35
-35
-93
-111
-91
-96
-92
Interest Expense
-
0
0
-
-
-
-
Depreciation
0
0
1
2
4
4
4
Income Before Tax
-35
-36
-94
-132
-95
-100
-101
Income Tax Expense
-
-
-
-
-
0
0
Net Income
-35
-36
-94
-132
-95
-101
-101
Net Profit Margin
0.00%
0.00%
0.00%
0.00%
45.10%
52.32%
47.33%

Quantum-Si Quarterly Cash Flow

All numbers in Millions USD

Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Mar 2026
Jun 2026
Net Income
-19
-23
-25
-33
-19
-28
-35
-17
-21
-23
Operating Cash Flow
-23
-18
-23
-22
-26
-20
-32
-16
-25
-18
Investing Cash Flow
-57
24
5
-5
-34
5
-6
7
40
8
Financing Cash Flow
0
0
0
35
48
0
46
0
-
-
Change in Cash
-80
6
-17
6
-11
-15
8
-9
14
-10

Quantum-Si Annual Cash Flow

All numbers in Millions USD

Dec 2019
Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Net Income
-35
-36
-94
-132
-95
-101
-101
Operating Cash Flow
-30
-32
-66
-90
-94
-87
-94
Investing Cash Flow
-1
0
-450
137
143
-32
-28
Financing Cash Flow
18
37
516
1
0
35
95
Change in Cash
-13
3
-1
48
49
-84
-27

Global Institutional Holdings in Quantum-Si

Check out the Institutions with significant holdings in Quantum-Si.

Funds
Holdings
ARK
7.15%
Vanguard
3.99%
Cathie Wood
3.60%
VANGUARD INDEX FUNDS
3.45%
iShares
1.03%

Quantum-Si News & Key Events

  • img

    Today's Timeline - 15 October

    Thu, 07:19 PM

    -

    Quantum-Si regains Nasdaq compliance after closing bid price exceeds $1 for 10 consecutive days.

Insights on Quantum-Si

Insights help you understand the recent movement of the company's critical parameters, giving you an overall view of the company.

  • imgPOSITIVE IMPACT

    Price Rise

    img

    In the last 1 month, QSI stock has moved up by 50.3%

  • imgNO EFFECT

    Against Peers

    img

    In the last 3 years, Medtronic plc has given 25.4% return, outperforming this stock by 32.8%

  • imgNO EFFECT

    Against Peers

    img

    In the last 1 year, Edwards Lifesciences Corp has given 16.0% return, outperforming this stock by 66.9%

About Quantum-Si

Quantum-Si incorporated operates within the life sciences sector, focusing on the creation of an advanced platform for individual molecule detection. This innovative technology is designed to streamline sample preparation and subsequent sequencing processes. The company offers a unique, proprietary single molecule detection system that draws on advancements from the semiconductor industry. This system is specifically applied to the field of proteomics, paving the way for next-generation protein sequencing. Established in 2013, Quantum-Si's headquarters are located in Guilford, Connecticut.
OrganisationQuantum-Si
Headquarters29 Business Park Drive, Branford, CT, 06405, US
IndustryMedical - Devices
CEOJeffrey Alan Hawkins

Key Management of Quantum-Si

Name

Title

Dr. Jonathan M. Rothberg Ph.D.

Founder & Executive Director

Mr. Jeffry R. Keyes C.P.A.

CFO & Treasurer

Mr. Jeffrey Alan Hawkins

President, CEO & Director

FAQs

What is Quantum-Si share price today?

Quantum-Si share price today is $1.12 as on at the close of the market. Quantum-Si share today touched a day high of $1.33 and a low of $1.10.

What is the 52 week high and 52 week low for Quantum-Si share?

Quantum-Si share touched a 52 week high of $2.73 on and a 52 week low of $0.69 on . Quantum-Si stock price today i.e. is closed at $1.12,which is 58.97% down from its 52 week high and 62.32% up from its 52 week low.

What is Quantum-Si's market capitalisation today?

Quantum-Si market capitalisation is $0.00T as on .

How to invest in Quantum-Si Stock (QSI) from India?

  1. Step 1: Open a free US stocks account on INDmoney App and transfer your Rupees into Dollars to your INDmoney US stocks account. For a step by step instruction, check How to Transfer Money to Your US Stocks Account .
  2. Step 2: Search for Quantum-Si on INDmoney app. Click on Buy button.

What is the minimum amount required to buy Quantum-Si Stock (QSI) from India?

Indian investors can start investing in Quantum-Si (QSI) shares with as little as ₹94.91500091552734 or $1 (as of ) using the INDmoney app.
For example: If you want to invest $10 or ₹949.15 in Quantum-Si stock (as per the Rupee-Dollar exchange rate as on ). Based on Quantum-Si share’s latest price of $1.12 as on October 19, 2026 at 8:45 am IST, you will get 8.9286 shares of Quantum-Si. Learn more about fractional shares .

What are the returns that Quantum-Si has given to Indian investors in the last 5 years?

Quantum-Si stock has given -86.84% share price returns and 26.42% dollar appreciation to an Indian investor in the last 5 years.
Read more about How do Currency Exchange Rates impact your returns on US Stock Investments?